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  • Genomic study of Indigenous Africans paints complex picture of human origins and local adaptation

    An international team of researchers led by Penn geneticists sequenced the genomes of 180 Indigenous Africans. The results shed light on the origin of modern humans, African population history, and local adaptation.
    12 images of individuals from different indigenous groups in Africa
    Researchers at Penn, working with an international team, sequenced the genomes of 180 individuals from 12 African indigenous groups, the first study to perform a rigorous whole-genome analysis of such a genetically diverse mix of African populations.
    (Images: Tishkoff Laboratory)

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  • A world shaped by water and access
    Three people test water below a sand dam.

    Griffin Pitt, right, works with two other student researchers to test the conductivity, total dissolved solids, salinity, and temperature of water below a sand dam in Kenya.

    (Image: Courtesy of Griffin Pitt)

    A world shaped by water and access

    Griffin Pitt’s upbringing made her passionate about water access and pollution, and Penn has given her the opportunity to explore these issues back home in North Carolina and abroad.

    Oct 8, 2025